CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
EPSS
Percentile
89.6%
It was discovered that libvirt, a library for interfacing with different virtualization systems, is prone to an integer overflow (CVE-2011-2511 ). Additionally, the stable version is prone to a denial of service, because its error reporting is not thread-safe (CVE-2011-1486 ).
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-2280. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(55625);
script_version("1.12");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2011-1486", "CVE-2011-2511");
script_bugtraq_id(47148, 48478);
script_xref(name:"DSA", value:"2280");
script_name(english:"Debian DSA-2280-1 : libvirt - several vulnerabilities");
script_summary(english:"Checks dpkg output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security-related update."
);
script_set_attribute(
attribute:"description",
value:
"It was discovered that libvirt, a library for interfacing with
different virtualization systems, is prone to an integer overflow
(CVE-2011-2511 ). Additionally, the stable version is prone to a
denial of service, because its error reporting is not thread-safe
(CVE-2011-1486 )."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=633630"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=623222"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2011-2511"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2011-1486"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/squeeze/libvirt"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2011/dsa-2280"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the libvirt packages.
For the stable distribution (squeeze), these problems have been fixed
in version 0.8.3-5+squeeze2.
For the oldstable distribution (lenny), this problem has been fixed in
version 0.4.6-10+lenny2."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvirt");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
script_set_attribute(attribute:"patch_publication_date", value:"2011/07/19");
script_set_attribute(attribute:"plugin_publication_date", value:"2011/07/20");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2011-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Debian Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"5.0", prefix:"libvirt", reference:"0.4.6-10+lenny2")) flag++;
if (deb_check(release:"6.0", prefix:"libvirt-bin", reference:"0.8.3-5+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libvirt-dev", reference:"0.8.3-5+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libvirt-doc", reference:"0.8.3-5+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libvirt0", reference:"0.8.3-5+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libvirt0-dbg", reference:"0.8.3-5+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"python-libvirt", reference:"0.8.3-5+squeeze2")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1486
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2511
bugs.debian.org/cgi-bin/bugreport.cgi?bug=623222
bugs.debian.org/cgi-bin/bugreport.cgi?bug=633630
packages.debian.org/source/squeeze/libvirt
security-tracker.debian.org/tracker/CVE-2011-1486
security-tracker.debian.org/tracker/CVE-2011-2511
www.debian.org/security/2011/dsa-2280